[ViewVC] Diff of: cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.198 by root, Sun Oct 7 03:58:37 2007 UTC vs.
Revision 1.261 by root, Mon Nov 10 05:09:30 2008 UTC

…		…
4	#define PERL_EXT	4	#define PERL_EXT
5		5
6	#include "EXTERN.h"	6	#include "EXTERN.h"
7	#include "perl.h"	7	#include "perl.h"
8	#include "XSUB.h"	8	#include "XSUB.h"
		9	#include "perliol.h"
9		10
10	#include "patchlevel.h"	11	#include "patchlevel.h"
11		12
12	#include <stdio.h>	13	#include <stdio.h>
13	#include <errno.h>	14	#include <errno.h>
14	#include <assert.h>	15	#include <assert.h>
		16
		17	#ifdef WIN32
		18	# undef setjmp
		19	# undef longjmp
		20	# undef _exit
		21	# define setjmp _setjmp // deep magic, don't ask
		22	#else
		23	# include <inttypes.h> /* most portable stdint.h */
		24	#endif
15		25
16	#ifdef HAVE_MMAP	26	#ifdef HAVE_MMAP
17	# include <unistd.h>	27	# include <unistd.h>
18	# include <sys/mman.h>	28	# include <sys/mman.h>
19	# ifndef MAP_ANONYMOUS	29	# ifndef MAP_ANONYMOUS
…		…
42	#else	52	#else
43	# define REGISTER_STACK(cctx,start,end)	53	# define REGISTER_STACK(cctx,start,end)
44	#endif	54	#endif
45		55
46	/* the maximum number of idle cctx that will be pooled */	56	/* the maximum number of idle cctx that will be pooled */
47	#define MAX_IDLE_CCTX 8	57	static int cctx_max_idle = 4;
48		58
49	#define PERL_VERSION_ATLEAST(a,b,c) \	59	#define PERL_VERSION_ATLEAST(a,b,c) \
50	(PERL_REVISION > (a) \	60	(PERL_REVISION > (a) \
51	\|\| (PERL_REVISION == (a) \	61	\|\| (PERL_REVISION == (a) \
52	&& (PERL_VERSION > (b) \	62	&& (PERL_VERSION > (b) \
…		…
71	# ifndef IS_PADCONST	81	# ifndef IS_PADCONST
72	# define IS_PADCONST(v) 0	82	# define IS_PADCONST(v) 0
73	# endif	83	# endif
74	#endif	84	#endif
75		85
		86	/* 5.11 */
		87	#ifndef CxHASARGS
		88	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
		89	#endif
		90
		91	/* 5.10.0 */
		92	#ifndef SvREFCNT_inc_NN
		93	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
		94	#endif
		95
		96	/* 5.8.8 */
		97	#ifndef GV_NOTQUAL
		98	# define GV_NOTQUAL 0
		99	#endif
		100	#ifndef newSV
		101	# define newSV(l) NEWSV(0,l)
		102	#endif
		103
76	/* 5.8.7 */	104	/* 5.8.7 */
77	#ifndef SvRV_set	105	#ifndef SvRV_set
78	# define SvRV_set(s,v) SvRV(s) = (v)	106	# define SvRV_set(s,v) SvRV(s) = (v)
79	#endif
80
81	/* 5.8.8 */
82	#ifndef GV_NOTQUAL
83	# define GV_NOTQUAL 0
84	#endif
85	#ifndef newSV
86	# define newSV(l) NEWSV(0,l)
87	#endif	107	#endif
88		108
89	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	109	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
90	# undef CORO_STACKGUARD	110	# undef CORO_STACKGUARD
91	#endif	111	#endif
…		…
122	#define NOINLINE attribute ((noinline))	142	#define NOINLINE attribute ((noinline))
123		143
124	#include "CoroAPI.h"	144	#include "CoroAPI.h"
125		145
126	#ifdef USE_ITHREADS	146	#ifdef USE_ITHREADS
		147
127	static perl_mutex coro_mutex;	148	static perl_mutex coro_lock;
128	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	149	# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
129	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	150	# define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0)
		151	# if CORO_PTHREAD
		152	static void *coro_thx;
		153	# endif
		154
130	#else	155	#else
		156
131	# define LOCK (void)0	157	# define LOCK (void)0
132	# define UNLOCK (void)0	158	# define UNLOCK (void)0
		159
133	#endif	160	#endif
		161
		162	# undef LOCK
		163	# define LOCK (void)0
		164	# undef UNLOCK
		165	# define UNLOCK (void)0
134		166
135	/* helper storage struct for Coro::AIO */	167	/* helper storage struct for Coro::AIO */
136	struct io_state	168	struct io_state
137	{	169	{
		170	AV *res;
138	int errorno;	171	int errorno;
139	I32 laststype;	172	I32 laststype; /* U16 in 5.10.0 */
140	int laststatval;	173	int laststatval;
141	Stat_t statcache;	174	Stat_t statcache;
142	};	175	};
143		176
		177	static double (nvtime)(); / so why doesn't it take void? */
		178
		179	static U32 cctx_gen;
144	static size_t coro_stacksize = CORO_STACKSIZE;	180	static size_t cctx_stacksize = CORO_STACKSIZE;
145	static struct CoroAPI coroapi;	181	static struct CoroAPI coroapi;
146	static AV main_mainstack; / used to differentiate between $main and others */	182	static AV main_mainstack; / used to differentiate between $main and others */
147	static JMPENV *main_top_env;	183	static JMPENV *main_top_env;
148	static HV coro_state_stash, coro_stash;	184	static HV coro_state_stash, coro_stash;
149	static SV coro_mortal; / will be freed after next transfer */	185	static volatile SV coro_mortal; / will be freed/thrown after next transfer */
		186	static volatile struct coro *transfer_next;
		187
		188	struct transfer_args
		189	{
		190	struct coro prev, next;
		191	};
150		192
151	static GV irsgv; / $/ */	193	static GV irsgv; / $/ */
152	static GV stdoutgv; / STDOUT /	194	static GV stdoutgv; / STDOUT /
		195	static SV *rv_diehook;
		196	static SV *rv_warnhook;
		197	static HV hv_sig; / %SIG */
153		198
154	/* async_pool helper stuff */	199	/* async_pool helper stuff */
155	static SV *sv_pool_rss;	200	static SV *sv_pool_rss;
156	static SV *sv_pool_size;	201	static SV *sv_pool_size;
157	static AV *av_async_pool;	202	static AV *av_async_pool;
		203
		204	/* Coro::AnyEvent */
		205	static SV *sv_activity;
158		206
159	static struct coro_cctx *cctx_first;	207	static struct coro_cctx *cctx_first;
160	static int cctx_count, cctx_idle;	208	static int cctx_count, cctx_idle;
161		209
162	enum {	210	enum {
…		…
180	void idle_sp; / sp of top-level transfer/schedule/cede call */	228	void idle_sp; / sp of top-level transfer/schedule/cede call */
181	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */	229	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
182	JMPENV *top_env;	230	JMPENV *top_env;
183	coro_context cctx;	231	coro_context cctx;
184		232
		233	U32 gen;
185	#if CORO_USE_VALGRIND	234	#if CORO_USE_VALGRIND
186	int valgrind_id;	235	int valgrind_id;
187	#endif	236	#endif
188	unsigned char flags;	237	unsigned char flags;
189	} coro_cctx;	238	} coro_cctx;
…		…
215		264
216	/* process data */	265	/* process data */
217	AV *mainstack;	266	AV *mainstack;
218	perl_slots slot; / basically the saved sp */	267	perl_slots slot; / basically the saved sp */
219		268
220	/* data associated with this coroutine (initial args) */	269	AV args; / data associated with this coroutine (initial args) */
221	AV *args;	270	int refcnt; /* coroutines are refcounted, yes */
222	int refcnt;
223	int flags; /* CF_ flags */	271	int flags; /* CF_ flags */
		272	HV hv; / the perl hash associated with this coro, if any */
224		273
225	/* statistics */	274	/* statistics */
226	int usecount; /* number of transfers to this coro */	275	int usecount; /* number of transfers to this coro */
227		276
228	/* coro process data */	277	/* coro process data */
229	int prio;	278	int prio;
230	SV *throw;	279	SV throw; / exception to be thrown */
231		280
232	/* async_pool */	281	/* async_pool */
233	SV *saved_deffh;	282	SV *saved_deffh;
234		283
235	/* linked list */	284	/* linked list */
236	struct coro next, prev;	285	struct coro next, prev;
237	HV hv; / the perl hash associated with this coro, if any */
238	};	286	};
239		287
240	typedef struct coro *Coro__State;	288	typedef struct coro *Coro__State;
241	typedef struct coro *Coro__State_or_hashref;	289	typedef struct coro *Coro__State_or_hashref;
242		290
…		…
249	#define PRIO_IDLE -3	297	#define PRIO_IDLE -3
250	#define PRIO_MIN -4	298	#define PRIO_MIN -4
251		299
252	/* for Coro.pm */	300	/* for Coro.pm */
253	static SV *coro_current;	301	static SV *coro_current;
		302	static SV *coro_readyhook;
254	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	303	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
255	static int coro_nready;	304	static int coro_nready;
256	static struct coro *coro_first;	305	static struct coro *coro_first;
257		306
258	/ lowlevel stuff ********************************************************/	307	/ lowlevel stuff ********************************************************/
259		308
		309	static SV *
		310	coro_get_sv (pTHX_ const char *name, int create)
		311	{
		312	#if PERL_VERSION_ATLEAST (5,10,0)
		313	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		314	get_sv (name, create);
		315	#endif
		316	return get_sv (name, create);
		317	}
		318
		319	static AV *
		320	coro_get_av (pTHX_ const char *name, int create)
		321	{
		322	#if PERL_VERSION_ATLEAST (5,10,0)
		323	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		324	get_av (name, create);
		325	#endif
		326	return get_av (name, create);
		327	}
		328
		329	static HV *
		330	coro_get_hv (pTHX_ const char *name, int create)
		331	{
		332	#if PERL_VERSION_ATLEAST (5,10,0)
		333	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		334	get_hv (name, create);
		335	#endif
		336	return get_hv (name, create);
		337	}
		338
260	static AV *	339	static AV *
261	coro_clone_padlist (pTHX_ CV *cv)	340	coro_clone_padlist (pTHX_ CV *cv)
262	{	341	{
263	AV *padlist = CvPADLIST (cv);	342	AV *padlist = CvPADLIST (cv);
264	AV newpadlist, newpad;	343	AV newpadlist, newpad;
265		344
266	newpadlist = newAV ();	345	newpadlist = newAV ();
267	AvREAL_off (newpadlist);	346	AvREAL_off (newpadlist);
268	#if PERL_VERSION_ATLEAST (5,9,0)	347	#if PERL_VERSION_ATLEAST (5,10,0)
269	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	348	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
270	#else	349	#else
271	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	350	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
272	#endif	351	#endif
273	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	352	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
274	--AvFILLp (padlist);	353	--AvFILLp (padlist);
275		354
276	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	355	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
277	av_store (newpadlist, 1, (SV *)newpad);	356	av_store (newpadlist, 1, (SV *)newpad);
278		357
279	return newpadlist;	358	return newpadlist;
280	}	359	}
281		360
…		…
311		390
312	/* casting is fun. */	391	/* casting is fun. */
313	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	392	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
314	free_padlist (aTHX_ padlist);	393	free_padlist (aTHX_ padlist);
315		394
316	SvREFCNT_dec (av);	395	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
317		396
318	return 0;	397	return 0;
319	}	398	}
320		399
321	#define PERL_MAGIC_coro PERL_MAGIC_ext	400	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		401	#define CORO_MAGIC_type_state PERL_MAGIC_ext
322		402
323	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	403	static MGVTBL coro_cv_vtbl = {
		404	0, 0, 0, 0,
		405	coro_cv_free
		406	};
324		407
325	#define CORO_MAGIC(cv) \	408	#define CORO_MAGIC(sv, type) \
326	SvMAGIC (cv) \	409	SvMAGIC (sv) \
327	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	410	? SvMAGIC (sv)->mg_type == type \
328	? SvMAGIC (cv) \	411	? SvMAGIC (sv) \
329	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	412	: mg_find (sv, type) \
330	: 0	413	: 0
		414
		415	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		416	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
331		417
332	static struct coro *	418	static struct coro *
333	SvSTATE_ (pTHX_ SV *coro)	419	SvSTATE_ (pTHX_ SV *coro)
334	{	420	{
335	HV *stash;	421	HV *stash;
…		…
347	/* very slow, but rare, check */	433	/* very slow, but rare, check */
348	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	434	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
349	croak ("Coro::State object required");	435	croak ("Coro::State object required");
350	}	436	}
351		437
352	mg = CORO_MAGIC (coro);	438	mg = CORO_MAGIC_state (coro);
353	return (struct coro *)mg->mg_ptr;	439	return (struct coro *)mg->mg_ptr;
354	}	440	}
355		441
356	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	442	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
357		443
358	/* the next two functions merely cache the padlists */	444	/* the next two functions merely cache the padlists */
359	static void	445	static void
360	get_padlist (pTHX_ CV *cv)	446	get_padlist (pTHX_ CV *cv)
361	{	447	{
362	MAGIC *mg = CORO_MAGIC (cv);	448	MAGIC *mg = CORO_MAGIC_cv (cv);
363	AV *av;	449	AV *av;
364		450
365	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	451	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
366	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	452	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
367	else	453	else
368	{	454	{
369	#if CORO_PREFER_PERL_FUNCTIONS	455	#if CORO_PREFER_PERL_FUNCTIONS
370	/* this is probably cleaner, but also slower? */	456	/* this is probably cleaner? but also slower! */
		457	/* in practise, it seems to be less stable */
371	CV *cp = Perl_cv_clone (cv);	458	CV *cp = Perl_cv_clone (cv);
372	CvPADLIST (cv) = CvPADLIST (cp);	459	CvPADLIST (cv) = CvPADLIST (cp);
373	CvPADLIST (cp) = 0;	460	CvPADLIST (cp) = 0;
374	SvREFCNT_dec (cp);	461	SvREFCNT_dec (cp);
375	#else	462	#else
…		…
379	}	466	}
380		467
381	static void	468	static void
382	put_padlist (pTHX_ CV *cv)	469	put_padlist (pTHX_ CV *cv)
383	{	470	{
384	MAGIC *mg = CORO_MAGIC (cv);	471	MAGIC *mg = CORO_MAGIC_cv (cv);
385	AV *av;	472	AV *av;
386		473
387	if (expect_false (!mg))	474	if (expect_false (!mg))
388	{	475	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
389	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
390	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
391	mg->mg_virtual = &vtbl_coro;
392	mg->mg_obj = (SV *)newAV ();
393	}
394		476
395	av = (AV *)mg->mg_obj;	477	av = (AV *)mg->mg_obj;
396		478
397	if (expect_false (AvFILLp (av) >= AvMAX (av)))	479	if (expect_false (AvFILLp (av) >= AvMAX (av)))
398	av_extend (av, AvMAX (av) + 1);	480	av_extend (av, AvMAX (av) + 1);
…		…
464		546
465	if (expect_true (CvDEPTH (cv)))	547	if (expect_true (CvDEPTH (cv)))
466	{	548	{
467	EXTEND (SP, 3);	549	EXTEND (SP, 3);
468	PUSHs ((SV *)CvPADLIST (cv));	550	PUSHs ((SV *)CvPADLIST (cv));
469	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	551	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
470	PUSHs ((SV *)cv);	552	PUSHs ((SV *)cv);
471		553
472	CvDEPTH (cv) = 0;	554	CvDEPTH (cv) = 0;
473	get_padlist (aTHX_ cv);	555	get_padlist (aTHX_ cv);
474	}	556	}
…		…
485		567
486	PUTBACK;	568	PUTBACK;
487	}	569	}
488		570
489	/* allocate some space on the context stack for our purposes */	571	/* allocate some space on the context stack for our purposes */
		572	/* we manually unroll here, as usually 2 slots is enough */
		573	if (SLOT_COUNT >= 1) CXINC;
		574	if (SLOT_COUNT >= 2) CXINC;
		575	if (SLOT_COUNT >= 3) CXINC;
490	{	576	{
491	/* we manually unroll here, as usually 2 slots is enough */
492	int i;	577	int i;
493	if (SLOT_COUNT >= 1) CXINC;
494	if (SLOT_COUNT >= 2) CXINC;
495	if (SLOT_COUNT >= 3) CXINC;
496	for (i = 3; i < SLOT_COUNT; ++i)	578	for (i = 3; i < SLOT_COUNT; ++i)
497	CXINC;	579	CXINC;
498
499	cxstack_ix -= SLOT_COUNT; /* undo allocation */
500	}	580	}
		581	cxstack_ix -= SLOT_COUNT; /* undo allocation */
501		582
502	c->mainstack = PL_mainstack;	583	c->mainstack = PL_mainstack;
503		584
504	{	585	{
505	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);	586	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
…		…
555		636
556	New(54,PL_savestack,24,ANY);	637	New(54,PL_savestack,24,ANY);
557	PL_savestack_ix = 0;	638	PL_savestack_ix = 0;
558	PL_savestack_max = 24;	639	PL_savestack_max = 24;
559		640
560	#if !PERL_VERSION_ATLEAST (5,9,0)	641	#if !PERL_VERSION_ATLEAST (5,10,0)
561	New(54,PL_retstack,4,OP*);	642	New(54,PL_retstack,4,OP*);
562	PL_retstack_ix = 0;	643	PL_retstack_ix = 0;
563	PL_retstack_max = 4;	644	PL_retstack_max = 4;
564	#endif	645	#endif
565	}	646	}
…		…
567		648
568	/*	649	/*
569	* destroy the stacks, the callchain etc...	650	* destroy the stacks, the callchain etc...
570	*/	651	*/
571	static void	652	static void
572	coro_destroy_stacks (pTHX)	653	coro_destruct_stacks (pTHX)
573	{	654	{
574	while (PL_curstackinfo->si_next)	655	while (PL_curstackinfo->si_next)
575	PL_curstackinfo = PL_curstackinfo->si_next;	656	PL_curstackinfo = PL_curstackinfo->si_next;
576		657
577	while (PL_curstackinfo)	658	while (PL_curstackinfo)
…		…
588		669
589	Safefree (PL_tmps_stack);	670	Safefree (PL_tmps_stack);
590	Safefree (PL_markstack);	671	Safefree (PL_markstack);
591	Safefree (PL_scopestack);	672	Safefree (PL_scopestack);
592	Safefree (PL_savestack);	673	Safefree (PL_savestack);
593	#if !PERL_VERSION_ATLEAST (5,9,0)	674	#if !PERL_VERSION_ATLEAST (5,10,0)
594	Safefree (PL_retstack);	675	Safefree (PL_retstack);
595	#endif	676	#endif
596	}	677	}
597		678
598	static size_t	679	static size_t
…		…
614	#undef VAR	695	#undef VAR
615	}	696	}
616	else	697	else
617	slot = coro->slot;	698	slot = coro->slot;
618		699
		700	if (slot)
		701	{
619	rss += sizeof (slot->curstackinfo);	702	rss += sizeof (slot->curstackinfo);
620	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	703	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
621	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	704	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
622	rss += slot->tmps_max * sizeof (SV *);	705	rss += slot->tmps_max * sizeof (SV *);
623	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);	706	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
624	rss += slot->scopestack_max * sizeof (I32);	707	rss += slot->scopestack_max * sizeof (I32);
625	rss += slot->savestack_max * sizeof (ANY);	708	rss += slot->savestack_max * sizeof (ANY);
626		709
627	#if !PERL_VERSION_ATLEAST (5,9,0)	710	#if !PERL_VERSION_ATLEAST (5,10,0)
628	rss += slot->retstack_max * sizeof (OP *);	711	rss += slot->retstack_max * sizeof (OP *);
629	#endif	712	#endif
		713	}
630	}	714	}
631		715
632	return rss;	716	return rss;
633	}	717	}
634		718
635	/ coroutine stack handling **********************************************/	719	/ coroutine stack handling **********************************************/
		720
		721	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		722	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		723	static int (orig_sigelem_clr) (pTHX_ SV sv, MAGIC *mg);
		724
		725	/* apparently < 5.8.8 */
		726	#ifndef MgPV_nolen_const
		727	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		728	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		729	(const char*)(mg)->mg_ptr)
		730	#endif
		731
		732	/*
		733	* This overrides the default magic get method of %SIG elements.
		734	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		735	* and instead of tryign to save and restore the hash elements, we just provide
		736	* readback here.
		737	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		738	* not expecting this to actually change the hook. This is a potential problem
		739	* when a schedule happens then, but we ignore this.
		740	*/
		741	static int
		742	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		743	{
		744	const char *s = MgPV_nolen_const (mg);
		745
		746	if (*s == '_')
		747	{
		748	SV **svp = 0;
		749
		750	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		751	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		752
		753	if (svp)
		754	{
		755	sv_setsv (sv, svp ? svp : &PL_sv_undef);
		756	return 0;
		757	}
		758	}
		759
		760	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		761	}
		762
		763	static int
		764	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		765	{
		766	const char *s = MgPV_nolen_const (mg);
		767
		768	if (*s == '_')
		769	{
		770	SV **svp = 0;
		771
		772	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		773	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		774
		775	if (svp)
		776	{
		777	SV old = svp;
		778	*svp = 0;
		779	SvREFCNT_dec (old);
		780	return 0;
		781	}
		782	}
		783
		784	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
		785	}
		786
		787	static int
		788	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		789	{
		790	const char *s = MgPV_nolen_const (mg);
		791
		792	if (*s == '_')
		793	{
		794	SV **svp = 0;
		795
		796	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		797	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		798
		799	if (svp)
		800	{
		801	SV old = svp;
		802	*svp = newSVsv (sv);
		803	SvREFCNT_dec (old);
		804	return 0;
		805	}
		806	}
		807
		808	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		809	}
636		810
637	static void	811	static void
638	coro_setup (pTHX_ struct coro *coro)	812	coro_setup (pTHX_ struct coro *coro)
639	{	813	{
640	/*	814	/*
…		…
649	PL_curpm = 0;	823	PL_curpm = 0;
650	PL_curpad = 0;	824	PL_curpad = 0;
651	PL_localizing = 0;	825	PL_localizing = 0;
652	PL_dirty = 0;	826	PL_dirty = 0;
653	PL_restartop = 0;	827	PL_restartop = 0;
654	PL_diehook = 0;	828	#if PERL_VERSION_ATLEAST (5,10,0)
655	PL_warnhook = 0;	829	PL_parser = 0;
		830	#endif
		831
		832	/* recreate the die/warn hooks */
		833	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		834	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
656		835
657	GvSV (PL_defgv) = newSV (0);	836	GvSV (PL_defgv) = newSV (0);
658	GvAV (PL_defgv) = coro->args; coro->args = 0;	837	GvAV (PL_defgv) = coro->args; coro->args = 0;
659	GvSV (PL_errgv) = newSV (0);	838	GvSV (PL_errgv) = newSV (0);
660	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	839	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
661	PL_rs = newSVsv (GvSV (irsgv));	840	PL_rs = newSVsv (GvSV (irsgv));
662	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);	841	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
663		842
664	{	843	{
665	dSP;	844	dSP;
666	LOGOP myop;	845	UNOP myop;
667		846
668	Zero (&myop, 1, LOGOP);	847	Zero (&myop, 1, UNOP);
669	myop.op_next = Nullop;	848	myop.op_next = Nullop;
670	myop.op_flags = OPf_WANT_VOID;	849	myop.op_flags = OPf_WANT_VOID;
671		850
672	PUSHMARK (SP);	851	PUSHMARK (SP);
673	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	852	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
…		…
675	PL_op = (OP *)&myop;	854	PL_op = (OP *)&myop;
676	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	855	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
677	SPAGAIN;	856	SPAGAIN;
678	}	857	}
679		858
680	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */	859	/* this newly created coroutine might be run on an existing cctx which most
		860	* likely was suspended in set_stacklevel, called from entersub.
		861	* set_stacklevel doesn't do anything on return, but entersub does LEAVE,
		862	* so we ENTER here for symmetry.
		863	*/
		864	ENTER;
681	}	865	}
682		866
683	static void	867	static void
684	coro_destroy (pTHX_ struct coro *coro)	868	coro_destruct (pTHX_ struct coro *coro)
685	{	869	{
686	if (!IN_DESTRUCT)	870	if (!IN_DESTRUCT)
687	{	871	{
688	/* restore all saved variables and stuff */	872	/* restore all saved variables and stuff */
689	LEAVE_SCOPE (0);	873	LEAVE_SCOPE (0);
…		…
711	SvREFCNT_dec (PL_warnhook);	895	SvREFCNT_dec (PL_warnhook);
712		896
713	SvREFCNT_dec (coro->saved_deffh);	897	SvREFCNT_dec (coro->saved_deffh);
714	SvREFCNT_dec (coro->throw);	898	SvREFCNT_dec (coro->throw);
715		899
716	coro_destroy_stacks (aTHX);	900	coro_destruct_stacks (aTHX);
717	}	901	}
718		902
719	static void	903	static void
720	free_coro_mortal (pTHX)	904	free_coro_mortal (pTHX)
721	{	905	{
…		…
758	: cx->blk_gimme == G_SCALAR ? bot + 1	942	: cx->blk_gimme == G_SCALAR ? bot + 1
759	: bot;	943	: bot;
760		944
761	av_extend (av, top - bot);	945	av_extend (av, top - bot);
762	while (bot < top)	946	while (bot < top)
763	av_push (av, SvREFCNT_inc (*bot++));	947	av_push (av, SvREFCNT_inc_NN (*bot++));
764		948
765	PL_runops = RUNOPS_DEFAULT;	949	PL_runops = RUNOPS_DEFAULT;
766	ENTER;	950	ENTER;
767	SAVETMPS;	951	SAVETMPS;
768	EXTEND (SP, 3);	952	EXTEND (SP, 3);
…		…
806	SAVETMPS;	990	SAVETMPS;
807	EXTEND (SP, 3);	991	EXTEND (SP, 3);
808	PUSHMARK (SP);	992	PUSHMARK (SP);
809	PUSHs (&PL_sv_yes);	993	PUSHs (&PL_sv_yes);
810	PUSHs (fullname);	994	PUSHs (fullname);
811	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	995	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
812	PUTBACK;	996	PUTBACK;
813	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	997	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
814	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	998	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
815	SPAGAIN;	999	SPAGAIN;
816	FREETMPS;	1000	FREETMPS;
…		…
848		1032
849	TAINT_NOT;	1033	TAINT_NOT;
850	return 0;	1034	return 0;
851	}	1035	}
852		1036
		1037	static void
		1038	prepare_set_stacklevel (struct transfer_args ta, struct coro_cctx cctx)
		1039	{
		1040	ta->prev = (struct coro *)cctx;
		1041	ta->next = 0;
		1042	}
		1043
853	/* inject a fake call to Coro::State::_cctx_init into the execution */	1044	/* inject a fake call to Coro::State::_cctx_init into the execution */
854	/* _cctx_init should be careful, as it could be called at almost any time */	1045	/* _cctx_init should be careful, as it could be called at almost any time */
855	/* during execution of a perl program */	1046	/* during execution of a perl program */
		1047	/* also initialises PL_top_env */
856	static void NOINLINE	1048	static void NOINLINE
857	prepare_cctx (pTHX_ coro_cctx *cctx)	1049	cctx_prepare (pTHX_ coro_cctx *cctx)
858	{	1050	{
859	dSP;	1051	dSP;
860	LOGOP myop;	1052	UNOP myop;
861		1053
862	PL_top_env = &PL_start_env;	1054	PL_top_env = &PL_start_env;
863		1055
864	if (cctx->flags & CC_TRACE)	1056	if (cctx->flags & CC_TRACE)
865	PL_runops = runops_trace;	1057	PL_runops = runops_trace;
866		1058
867	Zero (&myop, 1, LOGOP);	1059	Zero (&myop, 1, UNOP);
868	myop.op_next = PL_op;	1060	myop.op_next = PL_op;
869	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	1061	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
870		1062
871	PUSHMARK (SP);	1063	PUSHMARK (SP);
872	EXTEND (SP, 2);	1064	EXTEND (SP, 2);
873	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));	1065	PUSHs (sv_2mortal (newSViv ((IV)cctx)));
874	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	1066	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
875	PUTBACK;	1067	PUTBACK;
876	PL_op = (OP *)&myop;	1068	PL_op = (OP *)&myop;
877	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	1069	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
878	SPAGAIN;	1070	SPAGAIN;
879	}	1071	}
880		1072
		1073	/* the tail of transfer: execute stuff we can onyl do afetr a transfer */
		1074	static void
		1075	transfer_tail (void)
		1076	{
		1077	struct coro next = (struct coro )transfer_next;
		1078	transfer_next = 0; //D for temporary assertion in transfer
		1079	assert (("FATAL ERROR: internal error 1067 in Coro module, please report", next));//D
		1080
		1081	free_coro_mortal (aTHX);
		1082	UNLOCK;
		1083
		1084	if (expect_false (next->throw))
		1085	{
		1086	SV *exception = sv_2mortal (next->throw);
		1087
		1088	next->throw = 0;
		1089	sv_setsv (ERRSV, exception);
		1090	croak (0);
		1091	}
		1092	}
		1093
881	/*	1094	/*
882	* this is a _very_ stripped down perl interpreter ;)	1095	* this is a _very_ stripped down perl interpreter ;)
883	*/	1096	*/
884	static void	1097	static void
885	coro_run (void *arg)	1098	cctx_run (void *arg)
886	{	1099	{
		1100	#ifdef USE_ITHREADS
		1101	# if CORO_PTHREAD
		1102	PERL_SET_CONTEXT (coro_thx);
		1103	# endif
		1104	#endif
		1105	{
887	dTHX;	1106	dTHX;
888		1107
889	/* coro_run is the alternative tail of transfer(), so unlock here. */	1108	/* entersub called ENTER, but we never 'returned', undo that here */
890	UNLOCK;	1109	LEAVE;
891		1110
892	/* we now skip the entersub that lead to transfer() */	1111	/* we now skip the entersub that did lead to transfer() */
893	PL_op = PL_op->op_next;	1112	PL_op = PL_op->op_next;
894		1113
895	/* inject a fake subroutine call to cctx_init */	1114	/* inject a fake subroutine call to cctx_init */
896	prepare_cctx (aTHX_ (coro_cctx *)arg);	1115	cctx_prepare (aTHX_ (coro_cctx *)arg);
897		1116
		1117	/* cctx_run is the alternative tail of transfer() */
		1118	transfer_tail ();
		1119
898	/* somebody or something will hit me for both perl_run and PL_restartop */	1120	/* somebody or something will hit me for both perl_run and PL_restartop */
899	PL_restartop = PL_op;	1121	PL_restartop = PL_op;
900	perl_run (PL_curinterp);	1122	perl_run (PL_curinterp);
901		1123
902	/*	1124	/*
903	* If perl-run returns we assume exit() was being called or the coro	1125	* If perl-run returns we assume exit() was being called or the coro
904	* fell off the end, which seems to be the only valid (non-bug)	1126	* fell off the end, which seems to be the only valid (non-bug)
905	* reason for perl_run to return. We try to exit by jumping to the	1127	* reason for perl_run to return. We try to exit by jumping to the
906	* bootstrap-time "top" top_env, as we cannot restore the "main"	1128	* bootstrap-time "top" top_env, as we cannot restore the "main"
907	* coroutine as Coro has no such concept	1129	* coroutine as Coro has no such concept
908	*/	1130	*/
909	PL_top_env = main_top_env;	1131	PL_top_env = main_top_env;
910	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1132	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
		1133	}
911	}	1134	}
912		1135
913	static coro_cctx *	1136	static coro_cctx *
914	cctx_new ()	1137	cctx_new ()
915	{	1138	{
916	coro_cctx *cctx;	1139	coro_cctx *cctx;
		1140
		1141	++cctx_count;
		1142	New (0, cctx, 1, coro_cctx);
		1143
		1144	cctx->gen = cctx_gen;
		1145	cctx->flags = 0;
		1146	cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */
		1147
		1148	return cctx;
		1149	}
		1150
		1151	/* create a new cctx only suitable as source */
		1152	static coro_cctx *
		1153	cctx_new_empty ()
		1154	{
		1155	coro_cctx *cctx = cctx_new ();
		1156
		1157	cctx->sptr = 0;
		1158	coro_create (&cctx->cctx, 0, 0, 0, 0);
		1159
		1160	return cctx;
		1161	}
		1162
		1163	/* create a new cctx suitable as destination/running a perl interpreter */
		1164	static coro_cctx *
		1165	cctx_new_run ()
		1166	{
		1167	coro_cctx *cctx = cctx_new ();
917	void *stack_start;	1168	void *stack_start;
918	size_t stack_size;	1169	size_t stack_size;
919		1170
920	++cctx_count;
921
922	Newz (0, cctx, 1, coro_cctx);
923
924	#if HAVE_MMAP	1171	#if HAVE_MMAP
925
926	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1172	cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
927	/* mmap supposedly does allocate-on-write for us */	1173	/* mmap supposedly does allocate-on-write for us */
928	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1174	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
929		1175
930	if (cctx->sptr != (void *)-1)	1176	if (cctx->sptr != (void *)-1)
931	{	1177	{
…		…
937	cctx->flags \|= CC_MAPPED;	1183	cctx->flags \|= CC_MAPPED;
938	}	1184	}
939	else	1185	else
940	#endif	1186	#endif
941	{	1187	{
942	cctx->ssize = coro_stacksize * (long)sizeof (long);	1188	cctx->ssize = cctx_stacksize * (long)sizeof (long);
943	New (0, cctx->sptr, coro_stacksize, long);	1189	New (0, cctx->sptr, cctx_stacksize, long);
944		1190
945	if (!cctx->sptr)	1191	if (!cctx->sptr)
946	{	1192	{
947	perror ("FATAL: unable to allocate stack for coroutine");	1193	perror ("FATAL: unable to allocate stack for coroutine");
948	_exit (EXIT_FAILURE);	1194	_exit (EXIT_FAILURE);
…		…
951	stack_start = cctx->sptr;	1197	stack_start = cctx->sptr;
952	stack_size = cctx->ssize;	1198	stack_size = cctx->ssize;
953	}	1199	}
954		1200
955	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1201	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
956	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1202	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
957		1203
958	return cctx;	1204	return cctx;
959	}	1205	}
960		1206
961	static void	1207	static void
…		…
963	{	1209	{
964	if (!cctx)	1210	if (!cctx)
965	return;	1211	return;
966		1212
967	--cctx_count;	1213	--cctx_count;
		1214	coro_destroy (&cctx->cctx);
968		1215
		1216	/* coro_transfer creates new, empty cctx's */
		1217	if (cctx->sptr)
		1218	{
969	#if CORO_USE_VALGRIND	1219	#if CORO_USE_VALGRIND
970	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	1220	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
971	#endif	1221	#endif
972		1222
973	#if HAVE_MMAP	1223	#if HAVE_MMAP
974	if (cctx->flags & CC_MAPPED)	1224	if (cctx->flags & CC_MAPPED)
975	munmap (cctx->sptr, cctx->ssize);	1225	munmap (cctx->sptr, cctx->ssize);
976	else	1226	else
977	#endif	1227	#endif
978	Safefree (cctx->sptr);	1228	Safefree (cctx->sptr);
		1229	}
979		1230
980	Safefree (cctx);	1231	Safefree (cctx);
981	}	1232	}
982		1233
983	/* wether this cctx should be destructed */	1234	/* wether this cctx should be destructed */
984	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))	1235	#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen \|\| ((cctx)->flags & CC_NOREUSE))
985		1236
986	static coro_cctx *	1237	static coro_cctx *
987	cctx_get (pTHX)	1238	cctx_get (pTHX)
988	{	1239	{
989	while (expect_true (cctx_first))	1240	while (expect_true (cctx_first))
…		…
996	return cctx;	1247	return cctx;
997		1248
998	cctx_destroy (cctx);	1249	cctx_destroy (cctx);
999	}	1250	}
1000		1251
1001	return cctx_new ();	1252	return cctx_new_run ();
1002	}	1253	}
1003		1254
1004	static void	1255	static void
1005	cctx_put (coro_cctx *cctx)	1256	cctx_put (coro_cctx *cctx)
1006	{	1257	{
		1258	assert (("cctx_put called on non-initialised cctx", cctx->sptr));
		1259
1007	/* free another cctx if overlimit */	1260	/* free another cctx if overlimit */
1008	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))	1261	if (expect_false (cctx_idle >= cctx_max_idle))
1009	{	1262	{
1010	coro_cctx *first = cctx_first;	1263	coro_cctx *first = cctx_first;
1011	cctx_first = first->next;	1264	cctx_first = first->next;
1012	--cctx_idle;	1265	--cctx_idle;
1013		1266
…		…
1033	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1286	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1034		1287
1035	if (expect_false (next->flags & CF_DESTROYED))	1288	if (expect_false (next->flags & CF_DESTROYED))
1036	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1289	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1037		1290
1038	if (
1039	#if PERL_VERSION_ATLEAST (5,9,0)	1291	#if !PERL_VERSION_ATLEAST (5,10,0)
1040	expect_false (PL_parser)
1041	#else
1042	expect_false (PL_lex_state != LEX_NOTPARSING)	1292	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1043	#endif
1044	)
1045	croak ("Coro::State::transfer called while parsing, but this is not supported");	1293	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1294	#endif
1046	}	1295	}
1047	}	1296	}
1048		1297
1049	/* always use the TRANSFER macro */	1298	/* always use the TRANSFER macro */
1050	static void NOINLINE	1299	static void NOINLINE
1051	transfer (pTHX_ struct coro prev, struct coro next)	1300	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1052	{	1301	{
1053	dSTACKLEVEL;	1302	dSTACKLEVEL;
1054		1303
1055	/* sometimes transfer is only called to set idle_sp */	1304	/* sometimes transfer is only called to set idle_sp */
1056	if (expect_false (!next))	1305	if (expect_false (!next))
…		…
1062	{	1311	{
1063	coro_cctx *prev__cctx;	1312	coro_cctx *prev__cctx;
1064		1313
1065	if (expect_false (prev->flags & CF_NEW))	1314	if (expect_false (prev->flags & CF_NEW))
1066	{	1315	{
1067	/* create a new empty context */	1316	/* create a new empty/source context */
1068	Newz (0, prev->cctx, 1, coro_cctx);	1317	prev->cctx = cctx_new_empty ();
1069	prev->flags &= ~CF_NEW;	1318	prev->flags &= ~CF_NEW;
1070	prev->flags \|= CF_RUNNING;	1319	prev->flags \|= CF_RUNNING;
1071	}	1320	}
1072		1321
1073	prev->flags &= ~CF_RUNNING;	1322	prev->flags &= ~CF_RUNNING;
1074	next->flags \|= CF_RUNNING;	1323	next->flags \|= CF_RUNNING;
1075		1324
1076	LOCK;	1325	LOCK;
		1326
		1327	/* first get rid of the old state */
		1328	save_perl (aTHX_ prev);
1077		1329
1078	if (expect_false (next->flags & CF_NEW))	1330	if (expect_false (next->flags & CF_NEW))
1079	{	1331	{
1080	/* need to start coroutine */	1332	/* need to start coroutine */
1081	next->flags &= ~CF_NEW;	1333	next->flags &= ~CF_NEW;
1082	/* first get rid of the old state */
1083	save_perl (aTHX_ prev);
1084	/* setup coroutine call */	1334	/* setup coroutine call */
1085	coro_setup (aTHX_ next);	1335	coro_setup (aTHX_ next);
1086	}	1336	}
1087	else	1337	else
1088	{
1089	/* coroutine already started */
1090	save_perl (aTHX_ prev);
1091	load_perl (aTHX_ next);	1338	load_perl (aTHX_ next);
1092	}
1093		1339
1094	prev__cctx = prev->cctx;	1340	prev__cctx = prev->cctx;
1095		1341
1096	/* possibly "free" the cctx */	1342	/* possibly untie and reuse the cctx */
1097	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1343	if (expect_true (
		1344	prev__cctx->idle_sp == STACKLEVEL
		1345	&& !(prev__cctx->flags & CC_TRACE)
		1346	&& !force_cctx
		1347	))
1098	{	1348	{
1099	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1349	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1100	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1350	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1101		1351
1102	prev->cctx = 0;	1352	prev->cctx = 0;
1103		1353
1104	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1354	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1105	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1355	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1106	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1356	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1357	if (!next->cctx)
1107	next->cctx = cctx_get (aTHX);	1358	next->cctx = cctx_get (aTHX);
1108		1359
1109	cctx_put (prev__cctx);	1360	cctx_put (prev__cctx);
1110	}	1361	}
1111		1362
1112	++next->usecount;	1363	++next->usecount;
1113		1364
1114	if (expect_true (!next->cctx))	1365	if (expect_true (!next->cctx))
1115	next->cctx = cctx_get (aTHX);	1366	next->cctx = cctx_get (aTHX);
		1367
		1368	assert (("FATAL ERROR: internal error 1352 in Coro, please report", !transfer_next));//D
		1369	transfer_next = next;
1116		1370
1117	if (expect_false (prev__cctx != next->cctx))	1371	if (expect_false (prev__cctx != next->cctx))
1118	{	1372	{
1119	prev__cctx->top_env = PL_top_env;	1373	prev__cctx->top_env = PL_top_env;
1120	PL_top_env = next->cctx->top_env;	1374	PL_top_env = next->cctx->top_env;
1121	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1375	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1122	}	1376	}
1123		1377
1124	free_coro_mortal (aTHX);	1378	transfer_tail ();
1125	UNLOCK;
1126
1127	if (expect_false (prev->throw \|\| next->throw))
1128	{
1129	struct coro *coro = SvSTATE (coro_current);
1130
1131	if (coro->throw)
1132	{
1133	SV *exception = coro->throw;
1134	coro->throw = 0;
1135	sv_setsv (ERRSV, exception);
1136	croak (0);
1137	}
1138	}
1139	}	1379	}
1140	}	1380	}
1141		1381
1142	struct transfer_args
1143	{
1144	struct coro prev, next;
1145	};
1146
1147	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1382	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1148	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1383	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1149		1384
1150	/ high level stuff ******************************************************/	1385	/ high level stuff ******************************************************/
1151		1386
1152	static int	1387	static int
…		…
1176	croak ("FATAL: tried to destroy currently running coroutine");	1411	croak ("FATAL: tried to destroy currently running coroutine");
1177		1412
1178	save_perl (aTHX_ &temp);	1413	save_perl (aTHX_ &temp);
1179	load_perl (aTHX_ coro);	1414	load_perl (aTHX_ coro);
1180		1415
1181	coro_destroy (aTHX_ coro);	1416	coro_destruct (aTHX_ coro);
1182		1417
1183	load_perl (aTHX_ &temp);	1418	load_perl (aTHX_ &temp);
1184		1419
1185	coro->slot = 0;	1420	coro->slot = 0;
1186	}	1421	}
…		…
1246	{	1481	{
1247	dTHX;	1482	dTHX;
1248	struct transfer_args ta;	1483	struct transfer_args ta;
1249		1484
1250	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1485	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1251	TRANSFER (ta);	1486	TRANSFER (ta, 1);
1252	}	1487	}
1253		1488
1254	/ Coro ******************************************************************/	1489	/ Coro ******************************************************************/
1255		1490
1256	static void	1491	static void
…		…
1258	{	1493	{
1259	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1494	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1260	}	1495	}
1261		1496
1262	static SV *	1497	static SV *
1263	coro_deq (pTHX_ int min_prio)	1498	coro_deq (pTHX)
1264	{	1499	{
1265	int prio = PRIO_MAX - PRIO_MIN;	1500	int prio;
1266		1501
1267	min_prio -= PRIO_MIN;
1268	if (min_prio < 0)
1269	min_prio = 0;
1270
1271	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1502	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1272	if (AvFILLp (coro_ready [prio]) >= 0)	1503	if (AvFILLp (coro_ready [prio]) >= 0)
1273	return av_shift (coro_ready [prio]);	1504	return av_shift (coro_ready [prio]);
1274		1505
1275	return 0;	1506	return 0;
1276	}	1507	}
…		…
1278	static int	1509	static int
1279	api_ready (SV *coro_sv)	1510	api_ready (SV *coro_sv)
1280	{	1511	{
1281	dTHX;	1512	dTHX;
1282	struct coro *coro;	1513	struct coro *coro;
		1514	SV *sv_hook;
		1515	void (*xs_hook)(void);
1283		1516
1284	if (SvROK (coro_sv))	1517	if (SvROK (coro_sv))
1285	coro_sv = SvRV (coro_sv);	1518	coro_sv = SvRV (coro_sv);
1286		1519
1287	coro = SvSTATE (coro_sv);	1520	coro = SvSTATE (coro_sv);
…		…
1290	return 0;	1523	return 0;
1291		1524
1292	coro->flags \|= CF_READY;	1525	coro->flags \|= CF_READY;
1293		1526
1294	LOCK;	1527	LOCK;
		1528
		1529	sv_hook = coro_nready ? 0 : coro_readyhook;
		1530	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1531
1295	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1532	coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1296	++coro_nready;	1533	++coro_nready;
		1534
1297	UNLOCK;	1535	UNLOCK;
		1536
		1537	if (sv_hook)
		1538	{
		1539	dSP;
		1540
		1541	ENTER;
		1542	SAVETMPS;
		1543
		1544	PUSHMARK (SP);
		1545	PUTBACK;
		1546	call_sv (sv_hook, G_DISCARD);
		1547	SPAGAIN;
		1548
		1549	FREETMPS;
		1550	LEAVE;
		1551	}
		1552
		1553	if (xs_hook)
		1554	xs_hook ();
1298		1555
1299	return 1;	1556	return 1;
1300	}	1557	}
1301		1558
1302	static int	1559	static int
…		…
1312	SV prev_sv, next_sv;	1569	SV prev_sv, next_sv;
1313		1570
1314	for (;;)	1571	for (;;)
1315	{	1572	{
1316	LOCK;	1573	LOCK;
1317	next_sv = coro_deq (aTHX_ PRIO_MIN);	1574	next_sv = coro_deq (aTHX);
1318		1575
1319	/* nothing to schedule: call the idle handler */	1576	/* nothing to schedule: call the idle handler */
1320	if (expect_false (!next_sv))	1577	if (expect_false (!next_sv))
1321	{	1578	{
1322	dSP;	1579	dSP;
…		…
1326	SAVETMPS;	1583	SAVETMPS;
1327		1584
1328	PUSHMARK (SP);	1585	PUSHMARK (SP);
1329	PUTBACK;	1586	PUTBACK;
1330	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1587	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1588	SPAGAIN;
1331		1589
1332	FREETMPS;	1590	FREETMPS;
1333	LEAVE;	1591	LEAVE;
1334	continue;	1592	continue;
1335	}	1593	}
…		…
1339	/* cannot transfer to destroyed coros, skip and look for next */	1597	/* cannot transfer to destroyed coros, skip and look for next */
1340	if (expect_false (ta->next->flags & CF_DESTROYED))	1598	if (expect_false (ta->next->flags & CF_DESTROYED))
1341	{	1599	{
1342	UNLOCK;	1600	UNLOCK;
1343	SvREFCNT_dec (next_sv);	1601	SvREFCNT_dec (next_sv);
1344	/* coro_nready is already taken care of by destroy */	1602	/* coro_nready has already been taken care of by destroy */
1345	continue;	1603	continue;
1346	}	1604	}
1347		1605
1348	--coro_nready;	1606	--coro_nready;
1349	UNLOCK;	1607	UNLOCK;
…		…
1390	{	1648	{
1391	dTHX;	1649	dTHX;
1392	struct transfer_args ta;	1650	struct transfer_args ta;
1393		1651
1394	prepare_schedule (aTHX_ &ta);	1652	prepare_schedule (aTHX_ &ta);
1395	TRANSFER (ta);	1653	TRANSFER (ta, 1);
1396	}	1654	}
1397		1655
1398	static int	1656	static int
1399	api_cede (void)	1657	api_cede (void)
1400	{	1658	{
…		…
1403		1661
1404	prepare_cede (aTHX_ &ta);	1662	prepare_cede (aTHX_ &ta);
1405		1663
1406	if (expect_true (ta.prev != ta.next))	1664	if (expect_true (ta.prev != ta.next))
1407	{	1665	{
1408	TRANSFER (ta);	1666	TRANSFER (ta, 1);
1409	return 1;	1667	return 1;
1410	}	1668	}
1411	else	1669	else
1412	return 0;	1670	return 0;
1413	}	1671	}
…		…
1418	dTHX;	1676	dTHX;
1419	struct transfer_args ta;	1677	struct transfer_args ta;
1420		1678
1421	if (prepare_cede_notself (aTHX_ &ta))	1679	if (prepare_cede_notself (aTHX_ &ta))
1422	{	1680	{
1423	TRANSFER (ta);	1681	TRANSFER (ta, 1);
1424	return 1;	1682	return 1;
1425	}	1683	}
1426	else	1684	else
1427	return 0;	1685	return 0;
1428	}	1686	}
…		…
1434	struct coro *coro = SvSTATE (coro_sv);	1692	struct coro *coro = SvSTATE (coro_sv);
1435		1693
1436	if (flags & CC_TRACE)	1694	if (flags & CC_TRACE)
1437	{	1695	{
1438	if (!coro->cctx)	1696	if (!coro->cctx)
1439	coro->cctx = cctx_new ();	1697	coro->cctx = cctx_new_run ();
1440	else if (!(coro->cctx->flags & CC_TRACE))	1698	else if (!(coro->cctx->flags & CC_TRACE))
1441	croak ("cannot enable tracing on coroutine with custom stack");	1699	croak ("cannot enable tracing on coroutine with custom stack");
1442		1700
1443	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));	1701	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
1444	}	1702	}
…		…
1451	else	1709	else
1452	coro->slot->runops = RUNOPS_DEFAULT;	1710	coro->slot->runops = RUNOPS_DEFAULT;
1453	}	1711	}
1454	}	1712	}
1455		1713
		1714	#if 0
		1715	static int
		1716	coro_gensub_free (pTHX_ SV sv, MAGIC mg)
		1717	{
		1718	AV *padlist;
		1719	AV av = (AV )mg->mg_obj;
		1720
		1721	abort ();
		1722
		1723	return 0;
		1724	}
		1725
		1726	static MGVTBL coro_gensub_vtbl = {
		1727	0, 0, 0, 0,
		1728	coro_gensub_free
		1729	};
		1730	#endif
		1731
		1732	/*****************************************************************************/
		1733	/* PerlIO::cede */
		1734
		1735	typedef struct
		1736	{
		1737	PerlIOBuf base;
		1738	NV next, every;
		1739	} PerlIOCede;
		1740
		1741	static IV
		1742	PerlIOCede_pushed (pTHX_ PerlIO f, const char mode, SV arg, PerlIO_funcs tab)
		1743	{
		1744	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1745
		1746	self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
		1747	self->next = nvtime () + self->every;
		1748
		1749	return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
		1750	}
		1751
		1752	static SV *
		1753	PerlIOCede_getarg (pTHX_ PerlIO f, CLONE_PARAMS param, int flags)
		1754	{
		1755	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1756
		1757	return newSVnv (self->every);
		1758	}
		1759
		1760	static IV
		1761	PerlIOCede_flush (pTHX_ PerlIO *f)
		1762	{
		1763	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1764	double now = nvtime ();
		1765
		1766	if (now >= self->next)
		1767	{
		1768	api_cede ();
		1769	self->next = now + self->every;
		1770	}
		1771
		1772	return PerlIOBuf_flush (aTHX_ f);
		1773	}
		1774
		1775	static PerlIO_funcs PerlIO_cede =
		1776	{
		1777	sizeof(PerlIO_funcs),
		1778	"cede",
		1779	sizeof(PerlIOCede),
		1780	PERLIO_K_DESTRUCT \| PERLIO_K_RAW,
		1781	PerlIOCede_pushed,
		1782	PerlIOBuf_popped,
		1783	PerlIOBuf_open,
		1784	PerlIOBase_binmode,
		1785	PerlIOCede_getarg,
		1786	PerlIOBase_fileno,
		1787	PerlIOBuf_dup,
		1788	PerlIOBuf_read,
		1789	PerlIOBuf_unread,
		1790	PerlIOBuf_write,
		1791	PerlIOBuf_seek,
		1792	PerlIOBuf_tell,
		1793	PerlIOBuf_close,
		1794	PerlIOCede_flush,
		1795	PerlIOBuf_fill,
		1796	PerlIOBase_eof,
		1797	PerlIOBase_error,
		1798	PerlIOBase_clearerr,
		1799	PerlIOBase_setlinebuf,
		1800	PerlIOBuf_get_base,
		1801	PerlIOBuf_bufsiz,
		1802	PerlIOBuf_get_ptr,
		1803	PerlIOBuf_get_cnt,
		1804	PerlIOBuf_set_ptrcnt,
		1805	};
		1806
		1807
1456	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1808	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1457		1809
1458	PROTOTYPES: DISABLE	1810	PROTOTYPES: DISABLE
1459		1811
1460	BOOT:	1812	BOOT:
1461	{	1813	{
1462	#ifdef USE_ITHREADS	1814	#ifdef USE_ITHREADS
1463	MUTEX_INIT (&coro_mutex);	1815	MUTEX_INIT (&coro_lock);
		1816	# if CORO_PTHREAD
		1817	coro_thx = PERL_GET_CONTEXT;
		1818	# endif
1464	#endif	1819	#endif
1465	BOOT_PAGESIZE;	1820	BOOT_PAGESIZE;
1466		1821
1467	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1822	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1468	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1823	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1824
		1825	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1826	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1827	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1828
		1829	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1830	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1831	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1469		1832
1470	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1833	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1471		1834
1472	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1835	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1473	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1836	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1478	main_top_env = PL_top_env;	1841	main_top_env = PL_top_env;
1479		1842
1480	while (main_top_env->je_prev)	1843	while (main_top_env->je_prev)
1481	main_top_env = main_top_env->je_prev;	1844	main_top_env = main_top_env->je_prev;
1482		1845
1483	coroapi.ver = CORO_API_VERSION;	1846	coroapi.ver = CORO_API_VERSION;
		1847	coroapi.rev = CORO_API_REVISION;
1484	coroapi.transfer = api_transfer;	1848	coroapi.transfer = api_transfer;
		1849
		1850	{
		1851	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
		1852
		1853	if (!svp) croak ("Time::HiRes is required");
		1854	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
		1855
		1856	nvtime = INT2PTR (double ()(), SvIV (svp));
		1857	}
1485		1858
1486	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1859	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1487	}	1860	}
1488		1861
1489	SV *	1862	SV *
1490	new (char *klass, ...)	1863	new (char *klass, ...)
1491	CODE:	1864	CODE:
1492	{	1865	{
1493	struct coro *coro;	1866	struct coro *coro;
		1867	MAGIC *mg;
1494	HV *hv;	1868	HV *hv;
1495	int i;	1869	int i;
1496		1870
1497	Newz (0, coro, 1, struct coro);	1871	Newz (0, coro, 1, struct coro);
1498	coro->args = newAV ();	1872	coro->args = newAV ();
…		…
1501	if (coro_first) coro_first->prev = coro;	1875	if (coro_first) coro_first->prev = coro;
1502	coro->next = coro_first;	1876	coro->next = coro_first;
1503	coro_first = coro;	1877	coro_first = coro;
1504		1878
1505	coro->hv = hv = newHV ();	1879	coro->hv = hv = newHV ();
1506	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1880	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1881	mg->mg_flags \|= MGf_DUP;
1507	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1882	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1508		1883
1509	av_extend (coro->args, items - 1);	1884	av_extend (coro->args, items - 1);
1510	for (i = 1; i < items; i++)	1885	for (i = 1; i < items; i++)
1511	av_push (coro->args, newSVsv (ST (i)));	1886	av_push (coro->args, newSVsv (ST (i)));
…		…
1525	Coro::cede_notself = 4	1900	Coro::cede_notself = 4
1526	CODE:	1901	CODE:
1527	{	1902	{
1528	struct transfer_args ta;	1903	struct transfer_args ta;
1529		1904
		1905	PUTBACK;
1530	switch (ix)	1906	switch (ix)
1531	{	1907	{
1532	case 0:	1908	case 0:
1533	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1909	prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (ST (0)));
1534	ta.next = 0;
1535	break;	1910	break;
1536		1911
1537	case 1:	1912	case 1:
1538	if (items != 2)	1913	if (items != 2)
1539	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1914	croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items);
1540		1915
1541	prepare_transfer (aTHX_ &ta, ST (0), ST (1));	1916	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1542	break;	1917	break;
1543		1918
1544	case 2:	1919	case 2:
…		…
1553	if (!prepare_cede_notself (aTHX_ &ta))	1928	if (!prepare_cede_notself (aTHX_ &ta))
1554	XSRETURN_EMPTY;	1929	XSRETURN_EMPTY;
1555		1930
1556	break;	1931	break;
1557	}	1932	}
		1933	SPAGAIN;
1558		1934
1559	BARRIER;	1935	BARRIER;
		1936	PUTBACK;
1560	TRANSFER (ta);	1937	TRANSFER (ta, 0);
1561		1938	SPAGAIN; /* might be the sp of a different coroutine now */
1562	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1939	/* be extra careful not to ever do anything after TRANSFER */
1563	XSRETURN_YES;
1564	}	1940	}
1565		1941
1566	bool	1942	bool
1567	_destroy (SV *coro_sv)	1943	_destroy (SV *coro_sv)
1568	CODE:	1944	CODE:
1569	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1945	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1570	OUTPUT:	1946	OUTPUT:
1571	RETVAL	1947	RETVAL
1572		1948
1573	void	1949	void
1574	_exit (code)	1950	_exit (int code)
1575	int code
1576	PROTOTYPE: $	1951	PROTOTYPE: $
1577	CODE:	1952	CODE:
1578	_exit (code);	1953	_exit (code);
1579		1954
1580	int	1955	int
1581	cctx_stacksize (int new_stacksize = 0)	1956	cctx_stacksize (int new_stacksize = 0)
1582	CODE:	1957	CODE:
1583	RETVAL = coro_stacksize;	1958	RETVAL = cctx_stacksize;
1584	if (new_stacksize)	1959	if (new_stacksize)
		1960	{
1585	coro_stacksize = new_stacksize;	1961	cctx_stacksize = new_stacksize;
		1962	++cctx_gen;
		1963	}
		1964	OUTPUT:
		1965	RETVAL
		1966
		1967	int
		1968	cctx_max_idle (int max_idle = 0)
		1969	CODE:
		1970	RETVAL = cctx_max_idle;
		1971	if (max_idle > 1)
		1972	cctx_max_idle = max_idle;
1586	OUTPUT:	1973	OUTPUT:
1587	RETVAL	1974	RETVAL
1588		1975
1589	int	1976	int
1590	cctx_count ()	1977	cctx_count ()
…		…
1614	call (Coro::State coro, SV *coderef)	2001	call (Coro::State coro, SV *coderef)
1615	ALIAS:	2002	ALIAS:
1616	eval = 1	2003	eval = 1
1617	CODE:	2004	CODE:
1618	{	2005	{
1619	if (coro->mainstack)	2006	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))
1620	{	2007	{
1621	struct coro temp;	2008	struct coro temp;
1622		2009
1623	if (!(coro->flags & CF_RUNNING))	2010	if (!(coro->flags & CF_RUNNING))
1624	{	2011	{
		2012	PUTBACK;
1625	save_perl (aTHX_ &temp);	2013	save_perl (aTHX_ &temp);
1626	load_perl (aTHX_ coro);	2014	load_perl (aTHX_ coro);
1627	}	2015	}
1628		2016
1629	{	2017	{
1630	dSP;	2018	dSP;
1631	ENTER;	2019	ENTER;
1632	SAVETMPS;	2020	SAVETMPS;
		2021	PUTBACK;
		2022	PUSHSTACK;
1633	PUSHMARK (SP);	2023	PUSHMARK (SP);
1634	PUTBACK;
1635		2024
1636	if (ix)	2025	if (ix)
1637	eval_sv (coderef, 0);	2026	eval_sv (coderef, 0);
1638	else	2027	else
1639	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	2028	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1640		2029
		2030	POPSTACK;
1641	SPAGAIN;	2031	SPAGAIN;
1642	FREETMPS;	2032	FREETMPS;
1643	LEAVE;	2033	LEAVE;
1644	PUTBACK;	2034	PUTBACK;
1645	}	2035	}
1646		2036
1647	if (!(coro->flags & CF_RUNNING))	2037	if (!(coro->flags & CF_RUNNING))
1648	{	2038	{
1649	save_perl (aTHX_ coro);	2039	save_perl (aTHX_ coro);
1650	load_perl (aTHX_ &temp);	2040	load_perl (aTHX_ &temp);
		2041	SPAGAIN;
1651	}	2042	}
1652	}	2043	}
1653	}	2044	}
1654		2045
1655	SV *	2046	SV *
…		…
1664	RETVAL = boolSV (coro->flags & ix);	2055	RETVAL = boolSV (coro->flags & ix);
1665	OUTPUT:	2056	OUTPUT:
1666	RETVAL	2057	RETVAL
1667		2058
1668	void	2059	void
		2060	throw (Coro::State self, SV *throw = &PL_sv_undef)
		2061	PROTOTYPE: $;$
		2062	CODE:
		2063	SvREFCNT_dec (self->throw);
		2064	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		2065
		2066	void
1669	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	2067	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1670		2068
1671	SV *	2069	SV *
1672	has_stack (Coro::State coro)	2070	has_cctx (Coro::State coro)
1673	PROTOTYPE: $	2071	PROTOTYPE: $
1674	CODE:	2072	CODE:
1675	RETVAL = boolSV (!!coro->cctx);	2073	RETVAL = boolSV (!!coro->cctx);
1676	OUTPUT:	2074	OUTPUT:
1677	RETVAL	2075	RETVAL
…		…
1682	CODE:	2080	CODE:
1683	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;	2081	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1684	OUTPUT:	2082	OUTPUT:
1685	RETVAL	2083	RETVAL
1686		2084
1687	IV	2085	UV
1688	rss (Coro::State coro)	2086	rss (Coro::State coro)
1689	PROTOTYPE: $	2087	PROTOTYPE: $
1690	ALIAS:	2088	ALIAS:
1691	usecount = 1	2089	usecount = 1
1692	CODE:	2090	CODE:
…		…
1696	case 1: RETVAL = coro->usecount; break;	2094	case 1: RETVAL = coro->usecount; break;
1697	}	2095	}
1698	OUTPUT:	2096	OUTPUT:
1699	RETVAL	2097	RETVAL
1700		2098
		2099	void
		2100	force_cctx ()
		2101	CODE:
		2102	struct coro *coro = SvSTATE (coro_current);
		2103	coro->cctx->idle_sp = 0;
		2104
		2105	void
		2106	swap_defsv (Coro::State self)
		2107	PROTOTYPE: $
		2108	ALIAS:
		2109	swap_defav = 1
		2110	CODE:
		2111	if (!self->slot)
		2112	croak ("cannot swap state with coroutine that has no saved state");
		2113	else
		2114	{
		2115	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		2116	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		2117
		2118	SV tmp = src; src = dst; *dst = tmp;
		2119	}
1701		2120
1702	MODULE = Coro::State PACKAGE = Coro	2121	MODULE = Coro::State PACKAGE = Coro
1703		2122
1704	BOOT:	2123	BOOT:
1705	{	2124	{
1706	int i;	2125	int i;
1707		2126
1708	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
1709	get_sv ("Coro::POOL_RSS" , TRUE); /* silence stupid 5.10 warning */
1710	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
1711	get_sv ("Coro::POOL_SIZE" , TRUE); /* silence stupid 5.10 warning */
1712	av_async_pool = get_av ("Coro::async_pool", TRUE);	2127	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1713	get_av ("Coro::async_pool", TRUE); /* silence stupid 5.10 warning */	2128	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		2129	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1714		2130
1715	coro_current = get_sv ("Coro::current", FALSE);	2131	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1716	SvREADONLY_on (coro_current);	2132	SvREADONLY_on (coro_current);
1717		2133
1718	coro_stash = gv_stashpv ("Coro", TRUE);	2134	coro_stash = gv_stashpv ("Coro", TRUE);
1719		2135
1720	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	2136	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
…		…
1748	void	2164	void
1749	_set_current (SV *current)	2165	_set_current (SV *current)
1750	PROTOTYPE: $	2166	PROTOTYPE: $
1751	CODE:	2167	CODE:
1752	SvREFCNT_dec (SvRV (coro_current));	2168	SvREFCNT_dec (SvRV (coro_current));
1753	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	2169	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
		2170
		2171	void
		2172	_set_readyhook (SV *hook)
		2173	PROTOTYPE: $
		2174	CODE:
		2175	LOCK;
		2176	SvREFCNT_dec (coro_readyhook);
		2177	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		2178	UNLOCK;
1754		2179
1755	int	2180	int
1756	prio (Coro::State coro, int newprio = 0)	2181	prio (Coro::State coro, int newprio = 0)
1757	ALIAS:	2182	ALIAS:
1758	nice = 1	2183	nice = 1
…		…
1788	CODE:	2213	CODE:
1789	RETVAL = coro_nready;	2214	RETVAL = coro_nready;
1790	OUTPUT:	2215	OUTPUT:
1791	RETVAL	2216	RETVAL
1792		2217
1793	void
1794	throw (Coro::State self, SV *throw = &PL_sv_undef)
1795	PROTOTYPE: $;$
1796	CODE:
1797	SvREFCNT_dec (self->throw);
1798	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1799
1800	# for async_pool speedup	2218	# for async_pool speedup
1801	void	2219	void
1802	_pool_1 (SV *cb)	2220	_pool_1 (SV *cb)
1803	CODE:	2221	CODE:
1804	{	2222	{
…		…
1808	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	2226	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1809	AV *invoke_av;	2227	AV *invoke_av;
1810	int i, len;	2228	int i, len;
1811		2229
1812	if (!invoke)	2230	if (!invoke)
		2231	{
		2232	SV *old = PL_diehook;
		2233	PL_diehook = 0;
		2234	SvREFCNT_dec (old);
1813	croak ("\3async_pool terminate\2\n");	2235	croak ("\3async_pool terminate\2\n");
		2236	}
1814		2237
1815	SvREFCNT_dec (coro->saved_deffh);	2238	SvREFCNT_dec (coro->saved_deffh);
1816	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2239	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1817		2240
1818	hv_store (hv, "desc", sizeof ("desc") - 1,	2241	hv_store (hv, "desc", sizeof ("desc") - 1,
1819	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	2242	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1820		2243
1821	invoke_av = (AV *)SvRV (invoke);	2244	invoke_av = (AV *)SvRV (invoke);
…		…
1825		2248
1826	if (len > 0)	2249	if (len > 0)
1827	{	2250	{
1828	av_fill (defav, len - 1);	2251	av_fill (defav, len - 1);
1829	for (i = 0; i < len; ++i)	2252	for (i = 0; i < len; ++i)
1830	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));	2253	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1831	}	2254	}
1832		2255
1833	SvREFCNT_dec (invoke);	2256	SvREFCNT_dec (invoke);
1834	}	2257	}
1835		2258
…		…
1842	sv_setsv (cb, &PL_sv_undef);	2265	sv_setsv (cb, &PL_sv_undef);
1843		2266
1844	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2267	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1845	coro->saved_deffh = 0;	2268	coro->saved_deffh = 0;
1846		2269
1847	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2270	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1848	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2271	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2272	{
		2273	SV *old = PL_diehook;
		2274	PL_diehook = 0;
		2275	SvREFCNT_dec (old);
1849	croak ("\3async_pool terminate\2\n");	2276	croak ("\3async_pool terminate\2\n");
		2277	}
1850		2278
1851	av_clear (GvAV (PL_defgv));	2279	av_clear (GvAV (PL_defgv));
1852	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	2280	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1853	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	2281	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1854		2282
…		…
1858	api_trace (coro_current, 0);	2286	api_trace (coro_current, 0);
1859		2287
1860	av_push (av_async_pool, newSVsv (coro_current));	2288	av_push (av_async_pool, newSVsv (coro_current));
1861	}	2289	}
1862		2290
		2291	#if 0
		2292
		2293	void
		2294	_generator_call (...)
		2295	PROTOTYPE: @
		2296	PPCODE:
		2297	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2298	xxxx
		2299	abort ();
		2300
		2301	SV *
		2302	gensub (SV *sub, ...)
		2303	PROTOTYPE: &;@
		2304	CODE:
		2305	{
		2306	struct coro *coro;
		2307	MAGIC *mg;
		2308	CV *xcv;
		2309	CV ncv = (CV )newSV_type (SVt_PVCV);
		2310	int i;
		2311
		2312	CvGV (ncv) = CvGV (cv);
		2313	CvFILE (ncv) = CvFILE (cv);
		2314
		2315	Newz (0, coro, 1, struct coro);
		2316	coro->args = newAV ();
		2317	coro->flags = CF_NEW;
		2318
		2319	av_extend (coro->args, items - 1);
		2320	for (i = 1; i < items; i++)
		2321	av_push (coro->args, newSVsv (ST (i)));
		2322
		2323	CvISXSUB_on (ncv);
		2324	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2325
		2326	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2327
		2328	CvXSUB (ncv) = CvXSUB (xcv);
		2329	CvANON_on (ncv);
		2330
		2331	mg = sv_magicext ((SV )ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char )coro, 0);
		2332	RETVAL = newRV_noinc ((SV *)ncv);
		2333	}
		2334	OUTPUT:
		2335	RETVAL
		2336
		2337	#endif
		2338
1863		2339
1864	MODULE = Coro::State PACKAGE = Coro::AIO	2340	MODULE = Coro::State PACKAGE = Coro::AIO
1865		2341
1866	SV *	2342	void
1867	_get_state ()	2343	_get_state (SV *self)
1868	CODE:	2344	PPCODE:
1869	{	2345	{
1870	struct io_state *data;	2346	AV *defav = GvAV (PL_defgv);
1871		2347	AV *av = newAV ();
		2348	int i;
1872	RETVAL = newSV (sizeof (struct io_state));	2349	SV *data_sv = newSV (sizeof (struct io_state));
1873	data = (struct io_state *)SvPVX (RETVAL);	2350	struct io_state data = (struct io_state )SvPVX (data_sv);
1874	SvCUR_set (RETVAL, sizeof (struct io_state));	2351	SvCUR_set (data_sv, sizeof (struct io_state));
1875	SvPOK_only (RETVAL);	2352	SvPOK_only (data_sv);
1876		2353
1877	data->errorno = errno;	2354	data->errorno = errno;
1878	data->laststype = PL_laststype;	2355	data->laststype = PL_laststype;
1879	data->laststatval = PL_laststatval;	2356	data->laststatval = PL_laststatval;
1880	data->statcache = PL_statcache;	2357	data->statcache = PL_statcache;
		2358
		2359	av_extend (av, AvFILLp (defav) + 1 + 1);
		2360
		2361	for (i = 0; i <= AvFILLp (defav); ++i)
		2362	av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
		2363
		2364	av_push (av, data_sv);
		2365
		2366	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		2367
		2368	api_ready (self);
1881	}	2369	}
1882	OUTPUT:
1883	RETVAL
1884		2370
1885	void	2371	void
1886	_set_state (char *data_)	2372	_set_state (SV *state)
1887	PROTOTYPE: $	2373	PROTOTYPE: $
1888	CODE:	2374	PPCODE:
1889	{	2375	{
1890	struct io_state data = (void )data_;	2376	AV av = (AV )SvRV (state);
		2377	struct io_state data = (struct io_state )SvPVX (AvARRAY (av)[AvFILLp (av)]);
		2378	int i;
1891		2379
1892	errno = data->errorno;	2380	errno = data->errorno;
1893	PL_laststype = data->laststype;	2381	PL_laststype = data->laststype;
1894	PL_laststatval = data->laststatval;	2382	PL_laststatval = data->laststatval;
1895	PL_statcache = data->statcache;	2383	PL_statcache = data->statcache;
1896	}
1897		2384
		2385	EXTEND (SP, AvFILLp (av));
		2386	for (i = 0; i < AvFILLp (av); ++i)
		2387	PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
		2388	}
		2389
		2390
		2391	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2392
		2393	BOOT:
		2394	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2395
		2396	SV *
		2397	_schedule (...)
		2398	PROTOTYPE: @
		2399	CODE:
		2400	{
		2401	static int incede;
		2402
		2403	api_cede_notself ();
		2404
		2405	++incede;
		2406	while (coro_nready >= incede && api_cede ())
		2407	;
		2408
		2409	sv_setsv (sv_activity, &PL_sv_undef);
		2410	if (coro_nready >= incede)
		2411	{
		2412	PUSHMARK (SP);
		2413	PUTBACK;
		2414	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2415	SPAGAIN;
		2416	}
		2417
		2418	--incede;
		2419	}
		2420
		2421
		2422	MODULE = Coro::State PACKAGE = PerlIO::cede
		2423
		2424	BOOT:
		2425	PerlIO_define_layer (aTHX_ &PerlIO_cede);

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Comparing Coro/Coro/State.xs (file contents): Revision 1.198 by root, Sun Oct 7 03:58:37 2007 UTC vs. Revision 1.261 by root, Mon Nov 10 05:09:30 2008 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.198 by root, Sun Oct 7 03:58:37 2007 UTC vs.
Revision 1.261 by root, Mon Nov 10 05:09:30 2008 UTC